Doorcheck



J y 1, 1930- I J. J. JONESETAL 1,769,514

- nooncgscx Filed April; 30, 1929 r 2 Sheets-Sheet 1 I I Inventor JJJnes 43 4) 4? RWJa-swes E l/y \j'anes A ttomey device against movement when thedevice is in a Patented July 1, 1930 r UNITED ST TES OFFICE a 1 Jiassn J. :ronns, RAY w. JONES, QANDLGUY JonnsQor xms roinnomsncARonmA DOOBCHECK Application filed April 30,

. Another salient object of this invention is v 7 to provide a novel door check operatively as- 1 sociated with thelatch mechanism of afdoor ,which will be very simple in construction, consisting of but comparatively few parts, maybe readily and' easily assembledupon the door,

moan be manufactured at a very low cost,

strong, durable and otherwise well adapted for the purpose intended. I

' Other objects and advantages of the invention will become apparent during aistudy of ,20 the following'description takenin connection with thedrawing's, wherein: u

Figure 1 is a front elevatlon of a door and door frame and showing the practical appli'- cationof our invention therewith; Figure 2 is a fragmentary top plan view of the same 1301a larger, scale; I

Figure 3 is a detail sectional view taken substantially on the line of Figureb.

Figure '4: is a sectional view taken on line 4 '-4ofFigure3; Figure 5 isa' sectional view taken on line 5-5 of Figure 3.v

device, and showing means for locking the operation. r T Figure? is a detail sectional zvlewtaken Von line7-v7 of Figurelp s ing bar carried by the. latch mechanism:

With reference more in detail to the draws .ings, it will be seenthatthe reference characterb designates a'door frameof conventionalconstruction, having a door of anyv hinged mounted therein] known construction vas at 7. 7.,

At the top of Figure 8 is a detached view joftheconnect- Q V 1 example in dotted lines in Figure 2.

p the door frame-5 and adjacent I one edge thereof there is secured thereto a horizontally disposed bracket 9, which se- 192a SeriaL No. 359,297. 7

'curedtothe frame-as at 1010 and projecting laterallyof the frame as clearly shown in Figure 1. Atoothed'segment llc is secured at one end thereof. to the free end of the bracket 9 as at 12, and the other end ofthe segment is secured to the'frame as at 13. It is to be noted that the toothed segment 11 when. so

secured in place is concentric withiresp'ect tothe door hinge line. Suitably secured to the top portion of the doorand adjacent the hinge line thereof, is a substantially T-shaped member 14. This member 14 may besecured to thedoor by screws 15, or in any other suitable mannenf The T-head of themember is substantially flush with the top edge of the door,jand the said T-member has extending centrally therethrough a vertically disposed shaft'16 securely held against rotation therein, by means of a square headed bolt 17 securedto one end of the shaft 16 and adapted toseatwithin a socket 18 formedin the bottom of the T-head as clearly shown in Figure 3. v A squared nut 19 is fixed asat 20 to the shaft 16 intermediate the ends of the shaft,

and said nut 19 is adapted to seat within a suitable pocket 20 formed in the upper portion of the'T. That portion of the shaft 16 extending beyond the T projects into this space encompassed by the rack'll and has rotatably mounted thereon a pinion 21, and it willbe noted that the pinion 21 has secured thereto 1 1 i as at 22+ 2an open box like casing 23. A V Figurefi is a fragmentary detail view, partsgsuitablei spring 24: is arranged within thecasly in section, and partly in elevation, of the ing'23, and one end of this spring is fixed to the" shaft- 16 as at 25 and the oppositeend of the spring is fixed to the wall of thejcasing as at 26. The pinion 21 is adapted to engage with teeth on the segment 11 and to rotate on the shaft 16 during the movement of the; door to an, open position, such as is illustrated for A" suitable cover 27 is provided with an aperture 28 through which the reduced ex- V ,du ced portion 29 for securing the coverin positionupon the shaft. Thus the-casing 23; and vthe cover 27 cooperate to provide a. complete enclosure for the spring 24 to protect'the same from the element should the v the Weather.

device be associated vvith a door exposed to The arms 14 of theT- inemberlt are prefv,era-loly bifurcatedas at 31, and one'of the,

said arms 14 has pivotally mounted within .its furcation' a, dog ,32r'intermediate the ends 7; "of the dOgas'atSB. The dog 32isin the form of an j'elongatedfnarrovv member having at one'end a rigl'itflangularly disposed projecqmfieada d eng s theee h the P ion *21es'1'i11ustrat d in igure Adjacent its opposite end the dog 32has a laterallyeX-l tending projection 35 slidably'received in a socket 36 formed in the-T14 to limit the Lin-c wardmoveinent of the" dog upon its pivotal connection. acent itslovver extremity the li isprovidedizvith a transversely extend? ing groovey37 extendinghorizontally along the innerface of 'the member, and this groove "37acts "a gui de for xaflinkee, one end of V fvvhich linkissecuredto the free end of the dogf32 as-at"395,fvvhile the opposite end of 'the 'link38 is 'securejd to o'nearin of a bell crank lever 39, asfat 40. This-bell crank lever pivotally lnountedion theldoorb as at e extending vertically the bar 42' extends d e nd heicpp t d S p r1 f ha n m m r here our andsecured therehercoinprises the,conventional doorlknobeti,

V said' doorknob being-provided, with; a bar 47, I y 3 theoppjositejend ofvvhich bar member 47 is r 4d 7 y y i a1therespectivephains 43+43'ma be securedto apertured as 48-48, vvhfereby the ends c of ithejext'remities of thetsaid bar47; as clearly fillustratedfin Figure 1. It yetto be men,

tioned,that theirod42 hasja $1 649 extending 1transyersely thereofljand this: slot is adapted tore'ceivea pinj50 whichpin hasa flexible con netigqn' with, jib door adapted for 'slidable movement through a ui e m r53'ei y sw s 1 againstfthe under, sideof: whichfguide "member the pfirifidis adapted to abutlwhen associated with the; rod as previously 7 de-' t f's i eflllli p t t ng inw r 1, vertibfal ing, dog 3121 out; offengagenient pinion pt see hefii a s liekne 45m i h ridi ec io ih causing kfaddwnwaru ovegnestqfathe 11 142to? actu ate; thefbell crank'BQfand "in turn actuating the link 38; fordra vving" the, dog '32 outofennt" with} the, pinion, 21f 1 thus fpernaitf tingmovement1of th 1noor3 p0n its hinges.

.rnovement of thero'd; "consequently rnaintaim heflsr pfion web ite-i117 operation that upon turning Consequently as the door is svvung upon its hinges to open position, the pinion 21 in mesh .With the teeth on the rack 11 will rotate against the action of the spring thus perm1t-' ting the door to swing to any desired posi- 42 and link 88 for engaging the dog with the seat-got the pinion thus preventing vrotation tion. When the desired openposition of the doori-s obtained and the knob 45' on the door is'released solas to cause actuationof the rod of the pinion against the action ofthe'spring, V a

:the same time permittingengagement of thepinion with the rack 11 to hold the door "inithe desired open position. As is obvious,

the ider the door is swung open the tighter the spring is vvound', and consequently the morepovver is received, so that. as-the door isclosed, the greater-power of the spring is first applied, and the saidpovver then gradually diminishes, so as to'permit a and noiseless closing ofthe door.

TWhilevve'have herein shown and described certain detail elements of construction, it is -to be understood that the invention congradual templates certainch'anges to he-made therein Without departing from-the spirit of the invention {as herein described, or the scope of the .appcndedclalms. r

Having thus described our invention, what We claim as new and'desire to {secure by "Lett'ers Patentisf r 1. In a door check,the"combination of'a toothed segmentadapted to'be-fixedly secured to aidoor frame, a pinion secured to a sha-tt and-"mounted upon a door and engaging said segment, a spring meniber operatively associated vvithfthe shaft and pinion, apivotally {mounted dog adapted 'to' engage said pinion V forlocking saidpinion against rotation, a bell crank mounted on the door, alink connecting thebellcrank Withtll dog,-a latch mechanism, and a rodoperatively connecting the manner and for the purpose set -forth.-

2. In a door check, the-cornbination of a door'frame and a 'door' hinged'ly' mounted therein, together with a latch mechanism embodyinga door knob carried by the door,

ofabraeketcarried-by the door frame, a

toothed segment carried by the bracket and adapted to be securedto-tlie door frame, a T 7 member carried by the door adj acent theupper edge of-thedoor a shaft carried by said T-member,; a pinion rotatably mounted on the-shaft, and 'adaptedto engage with the seginent',""a"ca's ing carried by athe'pinion and "3 In a'door check, the combination "of a oothed segrnentadapted to be fixed securely bell'crankvviththelatch mechanisrn all in a to a door frame, a pinion secured to a shaft I and mounted upon a door and engaging said u segment, a casing carried by the pinion, and

adapted to receive one end of the shaft, a spring fixed within the casing and operatively associated with said one end of the shaft, a dog, means for pivotally mounting the dog in operative relation with'respect to the pinion, a bell crank, pivotally carried by the door, a link connecting the dog with the bell crank, a rod secured to the bell crank, guide means for the rod, a latch mechanism, means operatively connecting the rod withthe latch mechanism, and means carried by the door and adapted to engage the rod to prevent movement of the rod in one direction.

In testimony whereof we afiix 0ur signatures.

JESSE J. JONES. RAY W. JONES. GUY JONES. 

